Piranha snapping twig - GIF

[Altair]

Piranha snapping twig.




Previously:

How sawfish use their saw-like snout - GIF
Robotic fish - photo
How porcupine quills work - GIF
Shark with scoliosis - GIF
Shark breaches protective diving cage - GIF

[BuffaloJohn]

a trimming tool! Take it out to the garden and give it a trim...

[bob_3000]

a trimming tool! Take it out to the garden and give it a trim...

I'm pretty sure Barney Rubble did that.

[TheElderBrother]

They taste terrible, though.

[Fluffle-Valve]

Back in the 1980s, I had some Red Belly Piranhas in a big glass tank in my living room. I used to feed them live bait, like stickle backs and goldfish. They got bigger and bigger till one day, they ate each other. I finished up with one very big Red Belly.

[graniteguy]

AND they're carbon neutral!